6ct/16.9oz. America's premium water since 1871. National Headquarters Hot Springs National Park, Arkansas. NSF certified. Est. 1871. This water is packaged in non-BPA recyclable bottles. Naturally Occurring in Parts per Million: Calcium: 74.0; Magnesium: 7.3; Potassium: 1.0; Total Dissolved Solids: 220. 7.8 pH. Sourced in a remote valley of the Ouachita Mountains, USA.